Tellin is a Walloon municipality of Belgium located in the province of Luxembourg, in the Ardennes. On 1 January 2007 the municipality, which covers 56.64 km², had 2,386 inhabitants, giving a population density of 42.1 inhabitants per km².
The municipality consists of the following sub-municipalities: Tellin proper, Bure, Grupont, and Resteigne.
The Bell and Carillon Museum is housed in a former stagecoach inn. The museum shows the history of the foundry, manufacturing, professional secrets and the work of the bell-founders. In addition, there is a unique set of weather-vanes and clocks.